--Map Generation Stuff biome_lib.register_on_generate( { surface = { "default:dirt_with_grass", "default:gravel", "default:stone", "default:permafrost_with_stones" }, max_count = 50, rarity = 0, plantlife_limit = -1, check_air = true, random_facedir = {0, 3} }, { "cavestuff:pebble_1", "cavestuff:pebble_2" } ) biome_lib.register_on_generate( { surface = { "default:desert_sand", "default:desert_stone" }, max_count = 50, rarity = 0, plantlife_limit = -1, check_air = true, random_facedir = {0, 3} }, { "cavestuff:desert_pebble_1", "cavestuff:desert_pebble_2" } )